Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7211860 | Composites Part B: Engineering | 2018 | 29 Pages |
Abstract
This study experimentally investigates the static and impact response of a new single phase syntactic foam which has been newly developed for impact energy absorption. The syntactic foam had different densities ranging from 172â¯kg/m3 to 366â¯kg/m3 depending on the thickness and composition of the coating layers. The impact response and impact energy absorption were investigated by using instrumented drop-weight impact tests. Under static loads, the mechanical properties of the syntactic foam including the compressive strength, the yield stress, and Young's modulus increased with the density but the rate of increment decreased at higher densities. There were two types of progressive failures of the syntactic foam under impact loads. The failure propagation was examined and found to be dependent on the material density and the impact velocity. Interestingly, the densification only occurred in the low-density specimens while this phenomenon was not observed for the specimens with the density greater than 288â¯kg/m3. The impact energy absorption capacity increased significantly with the density and the wall thickness of the macrospheres.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Thong M. Pham, Wensu Chen, Jim Kingston, Hong Hao,